However, I would add a note of caution that many may not be directly paying, but instead may have a monthly subscription to a themed site (like a Sanrio or Disney site full of static and dynamic backgrounds, email templates and emoji icons, etc) with an all-you-can-eat or points-based model.

Though the selection is incredible and extensive, there is no "all-you-can-eat" option that made Netflix Streaming such a steal -- most HD movie rentals are $3.99, and most single episode TV show rentals are $0.99.